Loom shuttle



A. E. RHOADES.

LOOM SHUTTLE.

APPucATloN FILED nas. 2s, 1922.

1,430,187. PatentedSept. 26, 1922.

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Patented Sept. 2,

ALONZO E. RHOADES, OF HOPEDALE, MASSACHUSETTS, A SSIGNOR TO DRAPERCORPO- RATION, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

LOOM SHUTTLE.

Application filed February 28, 1922.

T o all w hom t may Gomera Be-'it known thatI, ALONZO E. RHoADEs, acitizen of the United States, resident of Hopedale, county of Worcester,State of Massachusetts, have invented an Improvement in Loom Shuttles,of which the following description, in connection with the accompanyingdrawing, is a specification, like characters on the drawing representinglike parts. f

This invention relates to loom shuttles of the type used in automaticfilling replenishing looms wherein when a fresh filling carrier isplaced in the shuttle the threading operation takes place automatically.The invention is also allowable in the hand threading type of shuttle.In shuttles of these types the filling is carried by the hand or by themechanism of the loom during the threading of the shuttle from thefilling carrier down through a threading slot and out through thedelivery eye of the shuttle, and it is important and necessary thatmeans be provided which will prevent the filling from being thrown orpassed out of the filling passage extending from the filling carrierchamber through the delivery eye.

During the operation of the loom the lling is often unwound or slips olffrom the end of the filling carrier more rapidly than it is utilized inthe weaving of the cloth. This results in ballooning or kinking of thefilling in such a manner that it not infrequently works its way up andout of the filling passage resulting either in imperfect work or thestopping of the loom, if it is provided with a filling controlled stopmotion, or both.

The object of the present invention is to provide a simple and efficientmeans for retaining the filling in the filling passage eX- tending fromthe filling carrier chamber out through the delivery eye and preventingthe filling from being thrown or passed out from this passage, while atthe same time providing a means which will not interfere with the readyself-threading action of the shuttle.

These and other objects and features of the invention will appear morefully from the accompanying description and drawings and will beparticularly pointed out in the claims.

Serial No. 539,970.

In the drawings;

Fig. 1 is a plan view of the delivery end of a self-threading shuttleprovided with a preferred form of the invention;

Fig. 2 is an end elevation looking toward the right of Fig. 1 of thethreading block;

Fig. 3 is a side elevation of the threading block.

Fig. 4 is an end eleva-tion of a detail of the threading block.

The shuttle which may be of any desired or usual type comprises a bodyortion l usually formed of wood and having at its ends the metal tips 2.The body of the shuttle is formed with a suitable chamber 3 in which ismounted a filling carrier herein shown as a bobbin 4. The delivery eye 5is located in the side of the shuttle near the tip.

The passage for the filling from the filling carrier chamber 3 into andout through the delivery eye 5 is usually formed mainly in a separatethreading block made of metal and rigidly secured in place in theshuttle. The invention in its preferred form is herein shown as embodiedin such a threading block. This threading block is shown separately inFigures 2 and 3.

T he threading block 6 has extending longitudinally therethrough afilling passage7 which connects the filling carrier chamber 3 with thedelivery eye 5, this delivery eye being formed mainly in the wooden bodyof the shuttle in a well-known and familiar y manner. The passage of thefilling into the filling passage takes place through a threading slotwhich in the case of the present invention is a straight longitudinalopening 8 directly over the filling passage. Tn effect this slot isenlarged into the opening 9 formed longitudinally in the upper portionof the threading block. The threading block at the forward end and atthe side toward the delivery eye is provided with a depending horn 10,the forward edge of which merges upwardly into a beak 11 at the forwardend of the threading slot. The recess 12 formed by the horn 10 in thethreading block aligns with and forms a portion 'of the upper wall ofthe delivery e e.

yTwo rows of pins are inserted in or formed on the threading block andproject over the threading slot 8. The free ends of the pins 13 at thedelivery eye side of the shuttle stand slightly higher than the pins 14Cat the opposite side and the free ends of the two sets of pins overlap,as shown in Figures 1 and 2. This enables the filling as it is drawninto the delivery eye to ride down on the upper surface of the pins 111and beneath the pins 13. Preferably also as shown the pins at one sideare staggered with respect to those at the opposite side. And preferablyalso the free ends of the pins are inclined slightly downwardly, that istoward the threading slot, and also forwardly or in a direct-ion awayfrom the filling carrier chamber 3 or in other words in the direction inwhich the filling moves as it is passed into the threading slot.

Vhen the shuttle, as is ordinarily the case, is of the self-threadingtype used in the automatic filling replenishing loom, the filling afterreplenishment extends from the tip of the filling carrier a in asubstantially straight line over the tip of the shuttle as the shuttleis picked away from the transfer side of the loom. In this invention thethreading slot and the guide opening thereinto extend in a straight linelongitudinally of the shuttle and this guide opening presents acomparatively wide mouth, as illustrated, so that the filling strandnaturally tends to pass down directly and easily into the threadingslot. As the shuttle starts on its return trip the filling passesbeneath the beak 11 and into the delivery eye 5 and is drawn downbeneath the pins sliding down on the top of the pins 14e and thencethrough the threading slot into the filling passage.

In order that in the threading action the filling strand may pass downbetween the free ends of the two sets of pins when overlapped the freeends of the pins, 13 in particular, are so shaped or positioned, as bysuitably rounding off the free ends, that the angle formed between thepin surfaces, as indica-ted at 15 in the enlarged detail view Fig. et,will enable the filling strand to be guided down beneath the pins.

The invention thus provides a simple and efficient means, in the pinsdescribed, for guiding the filling into the filling passage which is ofsuch a character that the opening or guideway for the filling into thethreading slot and thence into the filling` passage extends in the lineof the natural run of the filling enabling it to pass readily anddirectly into the passage. The pins also provide a simple and efficientmeans for retaining the filling in the filling passage and preventing itbeing thrown or otherwise passed out therefrom. It is found in practicethat it is almost impossible for the filling, under the conditions ofuse to which it is subjected, to work its way past the pins' so as tounthread the shuttle. rlhe invention materially simplifies theconstruction of the threading block, facilitates the threading actionand reduces to a minimum the danger of unthreading.

Having thus described my invention what I claim as new, and desire tosecure by Letters Patent, is:

1. A loom shuttle having a. body portion presenting a filling carrierchamber', a delivery eye at one side of the body, a filling passageextending longitudinally of the shuttle and connecting the fillingcarrier chamber and the delivery eye, and a threading slot extendinglongitudinally into the filling passage at the top and leading into thedelivery eye, together with a plurality of oppositely disposed pinsmounted in the body with their free ends overlapping above the threadingslot, the free ends of the pins at the delivery eye side standingslightly higher than those at the opposite side whereby as the fillingis drawn down into the filling passage and delivery eye it is drawnbetween and beneath the pins which thereupon act to prevent the fillingfrom being moved or thrown out of the lling passage.

2. A loom shuttle having the construction defined in claim 1 in whichthe said pins are staggered and in which their free ends are inclineddownwardly and away from the filling carrier chamber.

3. A loom shuttle having a body portion presenting a filling carrierchamber, a delivery eye at one side of the body, a threading blockmounted in the shuttle between the filling carrier chamber and deliveryeye and provided with a filling passage extending longitudinally of theshuttle and connecting the filling carrier chamber with the deliveryeye, and a threading slot in the threading block extendinglongitudinally into the filling passage at the top and leading into thedelivery eye, together with a plurality of oppositely disposed pinsmounted in the threading block with their free ends overlapping abovethe threading slot, the free ends of the pins at the delivery eye sidestanding slightly higher than those at the opposite side whereby as thefilling is drawn down into the filling passage and delivery eye it isdrawn between and beneath the pins which thereupon act to prevent thefilling from being moved or drawn out of the filling passage.

4:. A loom shuttle comprising the construction defined in claim 3 inwhich the said pins are staggered and in which their free ends areinclined downwardly and away from the filling carrier chamber.

In testimony whereof, I have signed my name to this specification.

ALoNZo E. ancianas.

